[coreboot] Samsung 550 Chromebook own Coreboot

[Aaron Durbin]

It's under the 'util' directory in the coreboot repository:

http://review.coreboot.org/gitweb?p=coreboot.git;a=tree;f=util/cbmem;h=14fbe6c462edf294e247e95616700cee7a6f46db;hb=refs/heads/master


>From this:
[    0.000000] e820: BIOS-provided physical RAM map:
[    0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable
[    0.000000] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved
[    0.000000] BIOS-e820: [mem 0x0000000000100000-0x000000001fffffff] usable
[    0.000000] BIOS-e820: [mem 0x0000000020000000-0x00000000201fffff] reserved
[    0.000000] BIOS-e820: [mem 0x0000000020200000-0x000000003fffffff] usable
[    0.000000] BIOS-e820: [mem 0x0000000040000000-0x00000000401fffff] reserved
[    0.000000] BIOS-e820: [mem 0x0000000040200000-0x000000007c6dffff] usable
[    0.000000] BIOS-e820: [mem 0x000000007c6e0000-0x000000007f1fffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000f0000000-0x00000000f3ffffff] reserved
[    0.000000] BIOS-e820: [mem 0x0000000100000000-0x00000001005fffff] usable

Adding up the reported usable memory should jive with your
expectations. As for needing console, yes, you will need to compile
with console.

CONFIG_EARLY_CBMEM_INIT=y
CONFIG_CONSOLE_CBMEM=y

On Mon, Jul 29, 2013 at 9:19 AM, John Lewis <jlewis at johnlewis.ie> wrote:
> Where do I find/build cbmem binary?
>
> Please find attached dmesg.
>
>
> On 29/07/2013 14:43, Aaron Durbin wrote:
>
>> Can you provide the full firmware log and dmesg? 'cbmem -l' should
>> give you the firmware log.
>>
>> On Sun, Jul 28, 2013 at 7:47 AM, John Lewis <jlewis at johnlewis.ie> wrote:
>>
>>> Guys, I have noticed that not all the 4 GB or RAM is showing, and I get
>>> this message in the kernel: [ 0.000000] Memory: 1914260k/4200448k
>>> available (6486k kernel code, 2160136k absent, 126052k reserved, 6780k
>>> data, 1412k init) Any idea what the problem is (mrc.bin), and what I
>>> might do to workaround? John. -- coreboot mailing list:
>>> coreboot at coreboot.org [1]
>>> http://www.coreboot.org/mailman/listinfo/coreboot [2]
>
>
>
> Links:
> ------
> [1] mailto:coreboot at coreboot.org
> [2] http://www.coreboot.org/mailman/listinfo/coreboot